Airtac SDA Ultra Thin Cylinder SDA50X30
The AirTAC Airtac SDA Ultra Thin Cylinder SDA50X30 is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 30mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ50 mm
- Stroke30 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDA Ultra Thin Cylinder SDA50X30
The AirTAC SDA50X30 is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. Its riveted unibody design merges the barrel, rear cover, piston, and rod, drastically reducing axial mounting depth where a standard round-body unit would be too long. The 50 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable low-friction operation.
This specific configuration moves a 20 mm piston rod over a 30 mm stroke, utilizing a PT1/4 port for air supply. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning external shock absorbers should be added for high-energy loads. Because this SKU lacks the S option, it has no piston magnet and cannot support position sensing.
Airtac SDA Ultra Thin Cylinder SDA50X30 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA50X30 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SDA Ultra Thin Cylinder SDA50X30
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDA Ultra Thin Cylinder SDA50X30 Is Used
Carton Erector Flaps
Drives the folding mechanism on packaging lines, using the 981.7 N extend force to rapidly open and square heavy corrugated cardboard flaps before taping.
Pallet Diverters
Pushes loaded pallets onto adjacent conveyor tracks, where the short 30 mm stroke and compact footprint fit neatly within tight transfer rail gaps.
Injection Mold Ejection
Acts as a secondary knock-out pin assembly on small injection molding machines, providing a solid 50 kg vertical lift to free parts from the die cavity.
Is the Airtac SDA Ultra Thin Cylinder SDA50X30 the Right Cylinder?
When sizing this actuator, consider stepping down to the SDA40, which provides 628.3 N of push at 0.5 MPa, or moving up to the SDA63, which yields 1558.6 N at the same pressure. A practical safe working load for this 50 mm bore is roughly 589 N, or a vertical lift of about 50 kg with a 2:1 safety margin. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only slows the piston near the stroke end and will not lock the load. For suspended loads, integrate an external rod lock or a pilot-operated check valve. To order, confirm the 50 mm bore, 30 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the absence of a magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA50X30 FAQ
At 0.5 MPa, the push force is 981.7 N and the pull force is 824.7 N. At 0.7 MPa, push is 1374.4 N and pull is 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches in the body grooves, you must order the SDA50X30S variant. Additionally, end-stop deceleration relies on a fixed NBR bumper, not an adjustable air cushion.
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